Johnson County, WY Weather Forecast
County weather hub
Mostly Sunny
Compare major city weather across Johnson County, scan the latest forecast snapshots, and jump into local 7-day outlook pages from one hub.
Mostly sunny, with a high near 73. Southwest wind 10 to 21 mph, with gusts as high as 32 mph.
County Weather Overview
This county weather page brings together forecast coverage for Johnson County so visitors can compare temperatures, wind, and conditions across the region without hopping between unrelated pages.
Current forecast coverage spans 1 of 1 mapped cities in Johnson County.
Page Snapshot
- Page focus
- county weather
- Forecast window
- Apr 11 to Apr 16, 2026
- Latest sync
- Apr 10, 2026 10:41 AM MDT
- Forecast office
- RIW
- Source
- NOAA / NWS
Daily Outlook
This Week in Johnson County
Saturday looks like the warmest upcoming period in Johnson County at 73 degrees F.
Thursday Night is the coolest period ahead with temperatures near 29 degrees F.
The strongest winds are forecast for Saturday at about 10 to 21 mph SW.
Precipitation is mentioned in 8 upcoming forecast periods.
Forecast Details
- Last updated
- Apr 10, 2026 10:41 AM MDT
- Coverage
- 7 days
- Time zone
- America/Denver
- Forecast office
- RIW
- Radar station
- KRIW
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
A chance of rain showers before midnight. Partly cloudy, with a low around 43. West southwest wind 12 to 18 mph, with gusts as high as 26 mph. Chance of precipitation is 30%.
Sunny, with a high near 69. West southwest wind 10 to 17 mph, with gusts as high as 26 mph.
A slight chance of rain showers before midnight. Mostly cloudy, with a low around 41. West southwest wind 10 to 15 mph, with gusts as high as 23 mph. Chance of precipitation is 20%.
A chance of showers and thunderstorms after noon. Mostly sunny, with a high near 62. West southwest wind 12 to 21 mph, with gusts as high as 31 mph. Chance of precipitation is 50%.
A chance of rain showers. Mostly cloudy, with a low around 38. Chance of precipitation is 50%.
A chance of rain showers before noon, then a chance of showers and thunderstorms. Mostly cloudy, with a high near 57. Chance of precipitation is 50%.
Partly cloudy, with a low around 36.
Mostly sunny, with a high near 63.
A chance of rain showers before 9pm, then a chance of rain and snow showers. Mostly cloudy, with a low around 33.
A chance of snow showers. Partly sunny, with a high near 52.
A chance of snow showers. Partly cloudy, with a low around 29. New snow accumulation of less than half an inch possible.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Saturday
Apr 11
|
Mostly Sunny
|
73°F |
10 to 21 mph
SW
|
|
Saturday Night
Apr 11
|
Chance Rain Showers then Partly Cloudy
|
43°F |
12 to 18 mph
WSW
|
|
Sunday
Apr 12
|
Sunny
|
69°F |
10 to 17 mph
WSW
|
|
Sunday Night
Apr 12
|
Slight Chance Rain Showers then Mostly Cloudy
|
41°F |
10 to 15 mph
WSW
|
|
Monday
Apr 13
|
Mostly Sunny then Chance Showers And Thunderstorms
|
62°F |
12 to 21 mph
WSW
|
|
Monday Night
Apr 13
|
Chance Rain Showers
|
38°F |
6 to 13 mph
NW
|
|
Tuesday
Apr 14
|
Chance Rain Showers
|
57°F |
6 to 9 mph
NNW
|
|
Tuesday Night
Apr 14
|
Partly Cloudy
|
36°F |
8 mph
WNW
|
|
Wednesday
Apr 15
|
Mostly Sunny
|
63°F |
9 to 20 mph
WSW
|
|
Wednesday Night
Apr 15
|
Chance Rain And Snow Showers
|
33°F |
13 to 18 mph
WNW
|
|
Thursday
Apr 16
|
Chance Snow Showers
|
52°F |
12 to 16 mph
N
|
|
Thursday Night
Apr 16
|
Chance Snow Showers
|
29°F |
9 to 13 mph
NW
|
Major City Forecasts
Live forecast snapshots for major cities across Johnson County.
Coverage
Forecast coverage currently spans 1 of 1 mapped cities in Johnson County.
Largest mapped city population in this region: 4,659.
